I have video files with MP4 extension (downloaded from my cellular phone) and it appears automatically associated with WMP in the computer.

It doesn't play correctly because the sound is not synchronized with the video. Why is that?

How can I correct this problem?

I already downloaded a Media Player Codec Pack, but I don't know if it needs some configuration and I don't know how to make it.

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3 Answers

Uninstall that codec package and any others that are installed (a must), then download this one and install it.

http://www.majorgeeks.com/download.php?det=5326

Says it is for Vista but is for XP also.

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Install K-Lite Codec pack, it automatically removes faulty codecs.

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Fully uninstall (including registry entries) any codec pack you have (you can use ccleaner for that) and install this codec pack

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link does not work – HackToHell Mar 25 at 14:02
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